Home / 36,985.11-51,042.59-20,855.53

Finding the Fourth Proportional to 36,985.11, 51,042.59 and 20,855.53

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Solution

The fourth proportional to 36,985.11, 51,042.59 and 20,855.53 is: 28,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,985.11 : 51,042.59 = 20,855.53 : x
  2. Step 2: Convert to fraction form
    36,985.11/51,042.59 = 20,855.53/x
  3. Step 3: Cross multiply
    36,985.11x = 51,042.59 × 20,855.53
  4. Step 4: Simplify right side
    36,985.11x = 1,064,520,296.65
  5. Step 5: Solve for x
    x = 1,064,520,296.65/36,985.11
  6. Step 6: Final answer
    x = 28,782.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.